package org.litesoft.p2pchat;

import java.io.*;
import java.util.*;


// Copyright Status:
//
// All Software available from LiteSoft.org (including this file) is
// hereby released into the public domain.
//
// It is free!  As in, you may use it freely in both commercial and
// non-commercial applications, bundle it with your software
// distribution, include it on a CD-ROM, list the source code in a book,
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// NO Warranty!
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// All software is provided "as is".
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// There is ABSOLUTELY NO WARRANTY OF ANY KIND: not for the design, fitness
// (for a particular purpose), level of errors (or lack thereof), or
// applicability of this software.  The entire risk as to the quality
// and performance of this software is with you.  Should this software
// prove defective, you assume the cost of all necessary servicing, repair
// or correction.
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// will any party who created or may modify and/or redistribute this
// software, be liable to you for damages, including any general,
// special, incidental or consequential damages arising out of the use or
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// data or data being rendered inaccurate or losses sustained by you or
// third parties or a failure of this software to operate with any
// other programs), even if such holder or other party has been advised
// of the possibility of such damages.
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// NOTE: Should you discover a bug, have a recogmendation for a change, wish
// to submit modifications, or wish to add new classes/functionality,
// please email them to:
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/**
 * @author  Devin Smith and George Smith
 * @version 0.3 02/02/02 Added IllegalArgument.ifNull for all public params that may not be null
 * @version 0.2 01/28/02 Refactored and Added Licence
 * @version 0.1 12/27/01 Initial Version
 */
public class ActivePeerManager
    implements ActivePeer.ActivePeersSupport , PendingPeerManager.ActivePeersSupport
{
    private MyInfo zMyInfo;
    private UserDialog zUserDialog;
    private PendingPeerManager zPendingPeerManager;
    private List zListofPeers = new ArrayList();
    private int zPeerCnt = 0;

    public ActivePeerManager( MyInfo pMyInfo , UserDialog pUserDialog , PendingPeerManager pPendingPeerManager )
    {
        IllegalArgument.ifNull( "MyInfo" , zMyInfo = pMyInfo );
        IllegalArgument.ifNull( "UserDialog" , zUserDialog = pUserDialog );
        IllegalArgument.ifNull( "PendingPeerManager" , zPendingPeerManager = pPendingPeerManager );
        zUserDialog.setActivePeerManager( this );
        zPendingPeerManager.start( this );
    }

    public synchronized void removeActivePeer( ActivePeer pRequester )
    {
        IllegalArgument.ifNull( "Requester" , pRequester );
        zListofPeers.remove( pRequester );
    }

    public synchronized PeerInfo[] getPeerInfos()
    {
        PeerInfo[] retval = new PeerInfo[ zListofPeers.size() ];
        for ( int i = 0 ; i < retval.length ; i++ )
            retval[ i ] = ((ActivePeer) (zListofPeers.get( i ))).getPeerInfo();
        return retval;
    }

    public synchronized void sendToAllCHAT( String pMessage )
    {
        IllegalArgument.ifNull( "Message" , pMessage );
        for ( Iterator it = zListofPeers.iterator() ; it.hasNext() ; )
            ((ActivePeer) it.next()).sendCHAT( pMessage );
    }

    public synchronized void sendToAllNAME()
    {
        for ( Iterator it = zListofPeers.iterator() ; it.hasNext() ; )
            ((ActivePeer) it.next()).sendNAME();
    }

    public synchronized ActivePeer getPeerListenerByID( String pID )
    {
        if ( pID != null )
            for ( Iterator it = zListofPeers.iterator() ; it.hasNext() ; )
            {
                ActivePeer peer = (ActivePeer) it.next();
                if ( pID.equals( peer.getPeerInfo().getID() ) )
                    return peer;
            }
        return null;
    }

    public synchronized boolean isAlreadyConnected( PeerInfo pPeerInfo )
    {
        if ( pPeerInfo != null )
            for ( Iterator it = zListofPeers.iterator() ; it.hasNext() ; )
                if ( ((ActivePeer) it.next()).getPeerInfo().equals( pPeerInfo ) )
                    return true;

        return false;
    }

    public synchronized void addActivePeer( PeerInfo pPeerInfo , InputStream pInputStream , OutputStream pOutputStream )
    {
        IllegalArgument.ifNull( "PeerInfo" , pPeerInfo );
        IllegalArgument.ifNull( "InputStream" , pInputStream );
        IllegalArgument.ifNull( "OutputStream" , pOutputStream );
        pPeerInfo.setID( new Integer( ++zPeerCnt ).toString() );
        zListofPeers.add(
            new ActivePeer( zMyInfo , zUserDialog , this , zPendingPeerManager ,
                            pPeerInfo , pInputStream , pOutputStream ) );
    }
}